Laser seeker optical head cover bonding process and assembly device

Abstract

The present invention discloses a laser seeker optical head cover bonding process, comprising the following steps: S1 applying glue on the bonding surface of the laser seeker shell, and centering and fixing the laser seeker shell by a shell positioning tool; S2 using a centering vacuum suction cup to suck the optical head cover, and positioning the end face by the centering vacuum suction cup to achieve coaxial bonding of the optical head cover and the laser seeker shell, and removing the centering vacuum suction cup after installation; S3 applying glue on the laser seeker shell and the optical head cover mounting surface, and using a pressure ring mounting tool to tighten the pressure ring on the optical head cover and push it to the corresponding mounting surface of the shell; S4 cleaning the excess glue, and then curing it. The present invention also discloses a corresponding assembly device. The present invention can ensure the coaxiality requirements of the laser seeker shell and the optical head cover, avoid grease contamination of the cover caused by manual touch, and can ensure the airtightness, reliability and consistency of the laser seeker optical head cover bonding in large-scale production.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical assembly technology for aerospace products, and in particular relates to a bonding process and an assembly device for an optical head cover of a laser seeker. Background Art

[0002] The optical hood is the sealing and protective element of the laser seeker. Installed at the very front end of the laser seeker, it acts as a protective cover for the "eyes" of the seeker's optoelectronic system, primarily shielding it from the external environment and the laser seeker's internal systems. At the same time, the target's radiant light energy passes through it to reach the detector assembly. Considering the aerodynamics of the laser seeker during flight, the laser seeker's shape is streamlined. The interface between the laser seeker housing and the optical hood is required to have a stepped transition. The optical hood and housing must be coaxial, and the bonding between the optical hood and housing must be sealed. Therefore, the geometric requirements (coaxiality and parallelism) for mounting the hood on the laser seeker housing are very stringent, and ensuring the precise fit is a pressing issue. The detection assembly operates in a sealed environment, so after the optical hood is installed on the laser seeker housing, consideration must be given to ensuring a 100% seal on the mating surfaces.

[0003] The optical head cover is a glass-like head cover and is fragile. Therefore, while ensuring its geometric requirements, it is also necessary to consider how to protect the head cover from damage during installation. At the same time, due to imaging requirements, the head cover needs to be kept clean and cannot be touched manually to avoid grease contamination of the head cover. In addition, due to the irreversible process assembly method of the optical head cover bonding, it cannot be disassembled without damage after the bonding is cured. The reliability and consistency of the optical head cover bonding must also be solved in the mass production process of laser guide heads. Summary of the Invention

[0004] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a laser seeker optical head cover bonding process and assembly device, which can ensure the coaxiality requirements of the laser seeker shell and the optical head cover, avoid grease contamination of the head cover caused by manual touch, and ensure the airtightness, reliability and consistency of the laser seeker optical head cover bonding in large-scale production.

[0005] To achieve the above object, according to one aspect of the present invention, a laser seeker optical head cover bonding process is provided, comprising the following steps:

[0006] S1 applies glue on the bonding surface of the laser seeker housing, and places the laser seeker housing on the housing positioning fixture so that the end surface of the laser seeker housing is flush with the end surface of the housing positioning fixture;

[0007] S2 uses the suction cup at the bottom of the centering vacuum suction cup to suck up the optical head cover, and centers it through the first positioning end surface corresponding to the centering vacuum suction cup. Then, the optical head cover is placed on the glue-coated surface of the shell, and positioned on the laser guide head shell through the second positioning end surface of the centering vacuum suction cup, so that the optical head cover and the laser guide head shell are coaxial. After the installation is completed, the centering vacuum suction cup is removed;

[0008] S3: Apply glue to the mounting surfaces of the laser seeker housing and the optical head cover. Use the pressure ring installation tool to tighten the pressure ring onto the optical head cover and push it onto the corresponding mounting surface of the housing. Check whether the silicone rubber overflowing between the bonding surface of the optical head cover and the laser seeker housing is uniform and continuous. If not, clean the glue surface and re-bond.

[0009] S4 cleans the excess glue and solidifies it into shape.

[0010] As a further improvement of the present invention, before step S1, a pressure ring is first installed on the laser seeker housing.

[0011] As a further improvement of the present invention, in step S1, the shell positioning tooling includes a hollow positioning bracket, the inner hole of which matches the outer shape of the laser seeker shell, and a rubber plate is provided on the inner hole of the positioning bracket to separate the shell positioning tooling from the laser seeker shell.

[0012] As a further improvement of the present invention, in step S2, the centering vacuum suction cup includes a rod body, one end of which is provided with a vacuum ball, and the other end is provided with the suction cup, the first positioning end face and the second positioning end face are arranged parallel to the rod body, and both are perpendicular to the rod body; the first positioning end face is arranged close to the suction cup, and the second positioning end face is arranged close to the vacuum ball.

[0013] As a further improvement of the present invention, in step S2, the edge shape of the first positioning end face is the same as the end face of the optical head cover, and the size is not larger than the size of the end face of the optical head cover; the edge shape of the second positioning end face is the same as the end groove body of the laser guide head shell, and the size is not larger than the size of the end groove body of the laser guide head shell.

[0014] Preferably, the outer diameter of the first positioning end face is 0.05mm to 0.15mm smaller than the outer diameter of the optical head cover; the outer diameter of the second positioning end face is 0.05mm to 0.15mm smaller than the inner diameter of the slot at the end of the laser guide head shell.

[0015] As a further improvement of the present invention, in step S3, the pressure ring is threadedly connected to the laser guide head housing, and the pressure ring is rotated and installed on the thread of the laser guide head housing to the pressure ring limiting step surface using the pressure ring installation tool, and the optical head cover is pushed into place at the same time.

[0016] As a further improvement of the present invention, in step S3, the pressure ring installation tool includes a vertical rod with a pressure plate at the bottom, the pressure plate matches the pressure ring groove body, and a universal torque screwdriver interface is provided at the top of the vertical rod, which can use a torque screwdriver to apply tightening torque to the pressure ring through the pressure ring installation tool.

[0017] As a further improvement of the present invention, in step S4, the curing molding method is: placing the optical head cover upward for curing, and after curing at room temperature for 24 hours to 48 hours, placing it at an angle so that the inside of the shell is connected to the external environment.

[0018] According to another aspect of the present invention, there is provided a laser seeker optical head cover bonding and assembly device, comprising:

[0019] The housing positioning fixture is a hollow bracket structure whose inner hole matches the outer shape of the laser seeker housing and is used to fix the laser seeker housing; the housing positioning fixture includes a positioning bracket, and the inner hole of the positioning bracket is provided with a rubber plate to separate the housing positioning fixture from the laser seeker housing;

[0020] A centering vacuum suction cup comprises a rod body, one end of which is provided with a vacuum ball, and the other end of which is provided with a suction cup. The rod body is provided with a first positioning end surface near the suction cup, and a second positioning end surface near the vacuum ball, both of which are parallel and perpendicular to the rod body; the first positioning end surface matches the end surface of the optical head cover, and the second positioning end surface matches the end groove of the laser guide head housing;

[0021] The pressure ring installation tool comprises a vertical rod, a pressure plate is provided at the bottom of the vertical rod, the pressure plate matches the pressure ring groove body, and a torque screwdriver interface is provided at the top of the vertical rod.

[0022] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0023] (1) The laser seeker optical head cover bonding process of the present invention uses a shell positioning tool to align and fix the laser seeker shell, and uses a centering vacuum suction cup to position the end face to achieve coaxial bonding of the optical head cover and the laser seeker shell. The pressure ring is rotated and installed on the laser seeker shell by a pressure ring installation tool to ensure that it is stably connected to the optical head cover. A relatively small thread screwing force can generate a large axial force, which can significantly improve the convenience of assembly operation. The bonding process of the present invention can ensure the coaxiality requirements of the laser seeker shell and the optical head cover, avoid grease contamination of the cover caused by manual touch, and ensure the airtightness, reliability and consistency of the laser seeker optical head cover bonding in large-scale production.

[0024] (2) The laser guide head optical head cover bonding process of the present invention, through the design of its key performance dimensional parameters, has been shown to be able to further improve the reliability and airtightness of the overall bonding assembly and meet the requirements of the laser guide head bonding assembly. The bonding method of the present invention is particularly suitable for bonding the optical head cover of an optical guide head with airtightness requirements.

[0025] (3) The laser seeker optical head cover bonding process of the present invention provides a laser seeker optical head cover bonding assembly process, quantifies the optical head cover assembly positioning parameters and glue coating requirements, and judges whether the bonding meets the requirements by checking the continuity of the extruded silicone rubber. This ensures that the laser seeker optical head cover bonding assembly achieves consistency and stable quality, and improves the product's adaptability to the environment. It meets the needs of large-scale production and can also improve work efficiency.

[0026] (4) The laser guide head optical head cover bonding assembly device of the present invention has a compact overall structure, is easy to process and manufacture, and is convenient and quick to operate. Moreover, for the assembly of smaller optical head covers with coaxiality requirements, it only needs to adjust the size of the corresponding parts to adapt. Therefore, it is particularly suitable for various complex applications of laser guide heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram showing the completed installation of the laser guide head housing and the optical head cover according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the installation of the laser seeker housing and the optical head cover involved in an embodiment of the present invention;

[0029] Figure 3 This is a diagram of the installation of a housing positioning tool according to an embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional view of the installation of a housing on a housing positioning tool according to an embodiment of the present invention;

[0031] Figure 5 Schematic diagram of the centering vacuum chuck structure involved in an embodiment of the present invention;

[0032] Figure 6 This is a diagram of the centering vacuum chuck in the embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of installing an optical head cover using a centering vacuum suction cup according to an embodiment of the present invention;

[0034] Figure 8 Schematic diagram of the structure of the pressure ring installation tool involved in an embodiment of the present invention;

[0035] Figure 9This is a schematic diagram of the installation of the pressure ring involved in an embodiment of the present invention.

[0036] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-laser guide head housing, 2-pressure ring, 3-silicone rubber, 4-optical head cover, 5-housing positioning tooling, 6-centering vacuum suction cup, 7-pressure ring installation tooling; 501-positioning bracket, 502-rubber plate; 601-vacuum ball, 602-first positioning end face, 603-second positioning end face, 604-suction cup. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] See Figure 1 and 2 The bonding process of the laser seeker optical head cover of the embodiment of the present invention first glues the optical head cover 4 to the laser seeker housing 1, and then fixes the optical head cover 4 with the pressure ring 2. Specifically, it includes the following steps:

[0043] (1) Install the pressure ring 2 on the laser seeker housing 1;

[0044] Before installation, it is preferred to test-fit the pressure ring 2 on the housing 1 to ensure that the pressure ring 2 rotates flexibly; after the test fitting is completed, the pressure ring 2 is removed and excess material is cleaned. Further preferably, the bonding surface of the laser guide head housing 1 is wiped clean with a dust-free cloth dipped in anhydrous alcohol.

[0045] (2) Applying glue on the bonding surface of the laser seeker housing 1;

[0046] Apply glue, preferably silicone rubber, on the bonding surface of the laser seeker housing 1. Ensure that the silicone rubber is continuous and the coating thickness is consistent; the coating thickness is preferably more than 10 times the gap filled with glue.

[0047] (3) Place the laser seeker housing 1 on the housing positioning fixture 5; ensure that the end surface of the laser seeker housing 1 is flush with the end surface of the housing positioning fixture 5.

[0048] like Figure 3 and Figure 4 As shown in the figure, a specific embodiment of the present invention provides a schematic diagram of the specific structure of a housing positioning tool 5. The housing positioning tool 5 is in the form of a hollow bracket with a tapered inner hole that matches the outer shape of the laser seeker housing 1. The housing positioning tool 5 includes a positioning bracket 501. A rubber plate 502 is provided on the inner hole of the positioning bracket 501. The rubber plate 502 is bonded to the positioning bracket 501. The housing positioning tool 5 is separated from the laser seeker housing 1 by the rubber plate 501, which can provide a cushioning effect, protect the housing appearance, and increase the friction between the two, improving installation stability.

[0049] Preferably, during installation, the end face of the laser seeker housing 1 is aligned with the end face (horizontally) of the housing positioning fixture 5 , so that the end face of the laser seeker housing 1 can be quickly adjusted to be horizontal, achieving the effect of automatic centering and centering.

[0050] (4) Using the centering vacuum suction cup 6 to install the optical head cover;

[0051] Clean the bonding and mounting surface of the optical head cover 4, use the suction cup 604 at the bottom of the centering vacuum suction cup 6 to suck the optical head cover 4, so that the end face of the optical head cover 4 is coaxial with the first positioning end face 602 of the centering vacuum suction cup 6, and center it through the first positioning end face 602; then place the optical head cover on the glue-coated surface of the shell, and position the second positioning end face 603 of the centering vacuum suction cup on the shell to make the optical head cover 4 coaxial with the laser guide head shell 1; after the installation is completed, remove the centering vacuum suction cup 6.

[0052] like Figures 5 to 7 As shown, an embodiment of the present invention provides a schematic diagram of the specific structure of a centering vacuum suction cup 6. The centering vacuum suction cup 6 includes a rod body, a vacuum ball 601 is provided at one end of the rod body, and a suction cup 604 is provided at the other end. A first positioning end surface 602 and a second positioning end surface 603 are provided parallel to the rod body and are both perpendicular to the rod body. The first positioning end surface 602 is close to the suction cup 604, and its edge shape is the same as the end surface of the optical head cover 4, and its size is not larger than the size of the end surface of the optical head cover 4; the second positioning end surface 603 is provided close to the vacuum ball 601, and its edge shape is the same as the end groove of the laser guide head housing 1, and its size is not larger than the size of the end groove of the laser guide head housing 1.

[0053] Preferably, the first positioning end surface 602 is smaller than the end surface of the optical head cover 4. More preferably, the first positioning end surface 602 is a circular structure, and its outer diameter is 0.05mm to 0.15mm smaller than the outer diameter of the optical head cover 4. When the first positioning end surface 602 is used to center the optical head cover, it is checked that the first positioning end surface 602 of the centering vacuum suction cup 6 is located within the outer diameter of the end surface of the optical head cover. The suction cup 604 is then determined to be located at the center of the optical head cover 4, and the optical head cover is then suctioned. The suction principle of the vacuum suction cup is conventional technology and will not be described in detail here.

[0054] Preferably, the size of the second positioning end face 603 is smaller than the size of the end groove of the laser guide head housing 1. More preferably, the second positioning end face 603 is a circular structure, and its outer diameter is 0.05mm to 0.15mm smaller than the inner diameter of the end groove of the laser guide head housing 1, so as to facilitate the positioning of the second positioning end face 603 in the end groove of the laser guide head housing 1, thereby ensuring the coaxiality of the optical head cover 4 and the laser guide head housing 1.

[0055] In addition, the positions of the first positioning end face 602 and the second positioning end face 603 and the sizes of the laser guide head housing 1 and the optical head cover 4 are adjusted, and after adjustment, they can be fastened by screw threads.

[0056] Preferably, when the optical head cover 4 is placed on the glue-coated surface of the laser guide head housing 1, it must be higher than the pressure ring limit step surface. On the one hand, it provides distance for the optical head cover 4 to move under its own weight. On the other hand, when the pressure ring 2 is subsequently crimped, it provides distance for the pressure ring to push the optical head cover 4 when moving, so as to achieve a stable connection between the optical head cover 4 and the pressure ring 2.

[0057] Preferably, in this step, when cleaning the bonding and mounting surface of the optical head cover 4, use a dust-free cloth dipped in anhydrous alcohol to wipe and clean it, and avoid using absorbent cotton.

[0058] (5) Apply glue to the laser seeker housing and the optical head cover mounting surface;

[0059] Apply silicone rubber on the end surfaces of the laser guide head housing 1 and the optical head cover 4 to ensure that the silicone rubber is continuous and the coating thickness is consistent; the coating thickness is preferably at least 2 mm greater than the depth of the glue filling groove on the pressure ring.

[0060] (6) Use the pressure ring installation tool 7 to rotate and install the pressure ring 2 on the shell 1. Use the pressure ring installation tool 7 to tighten the pressure ring 2 to push the optical head cover 4 to the installation surface of the shell 1. Check that the silicone rubber overflowing between the bonding surface of the optical head cover 4 and the shell 1 should be uniform and continuous, otherwise re-bond it.

[0061] In this step, check if the silicone rubber overflowing between the bonding surface of the optical head cover 4 and the shell 1 is broken. There may be a lack of glue or holes in the glue, and re-bonding is required. The specific method is to remove the pressure ring 2 and the optical head cover 4, clean the glue surface, and repeat the above steps starting from step (2).

[0062] like Figure 8 As shown, an embodiment of the present invention provides a schematic diagram of the specific structure of a pressure ring installation tool 7. The pressure ring installation tool 7 includes a vertical rod with a pressure plate at its bottom, which matches the groove body of the pressure ring 2. Further preferably, the pressure plate can be connected to the pressure ring 2 through a concave-convex structure. The side of the pressure plate is provided with a plurality of protrusions in an annular direction, which match the groove portion provided in an annular manner on the groove body of the pressure ring 2, thereby facilitating a stable connection between the pressure ring installation tool 7 and the pressure ring 2.

[0063] Preferably, the pressure ring 2 is threadedly connected to the laser guide head housing 1, and a matching thread is provided on the pressure ring mounting surface of the laser guide head housing 1, and a corresponding pressure ring limiting step surface is provided. The pressure ring 2 is rotated on the thread of the laser guide head housing 1 and installed to the pressure ring limiting step surface, while pushing the optical head cover 4 into place.

[0064] Preferably, a universal torque screwdriver interface (external hexagonal end face) is provided at the top of the vertical rod, and a torque screwdriver is further used to apply a tightening torque to the pressure ring 2 through the pressure ring installation tool 7, so that it can be stably connected to the laser guide head housing 1.

[0065] More preferably, a handle is provided on the vertical rod for easy operation.

[0066] (6) Clean up excess glue and cure the silicone rubber;

[0067] When wiping from the optical head cover 4 to the laser guide head housing 1, avoid wiping in a clockwise (counterclockwise) direction, that is, avoid circular wiping and wiping from the laser guide head housing 1 to the optical head cover 4 to prevent the optical head cover 4 from rotating during the wiping process and causing air leakage.

[0068] The curing method is as follows: Place the bonded optical head cover 4 upwards and cure the silicone rubber at room temperature. The curing time should be based on the instruction manual of the silicone rubber. During the curing process, do not press the optical head cover 4 or loosen the pressure ring 2. After curing for 24 to 48 hours, tilt the shell 1 to avoid applying force to the optical head cover 4. Allow the interior of the shell 1 to communicate with the external environment to avoid chemical reactions between the silicone rubber and the optical head cover in a closed environment.

[0069] The bonding method of the present invention is particularly suitable for bonding the optical head cover of an optical guide head that requires airtightness. After the optical head cover 4 is bonded to the laser guide head housing 1, it can be further tested using existing airtightness testing methods, including but not limited to vacuuming and high-pressure methods to check the pressure drop and check the strength, reliability, and airtightness of the optical head cover bonding.

[0070] A specific embodiment of the present invention provides an airtightness testing method as follows: The housing 1 is installed on a product and filled with nitrogen. Vacuuming is performed to -100kPa ± 10kPa, followed by filling with 135kPa ± 3kPa of nitrogen and maintaining the pressure for 1 minute. Then, nitrogen is filled with 15kPa ± 2kPa and the product is stored in a fixed location with an ambient temperature variation of no more than 1°C. The internal pressure drop of the product within 10 minutes is no more than 80Pa. However, the above method is not limiting, and those skilled in the art may select an appropriate airtightness testing method for testing based on actual conditions.

[0071] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser seeker optical head cover bonding process, characterized in that: The steps include: S1 applies glue on the bonding surface of the laser seeker housing, and places the laser seeker housing on the housing positioning fixture so that the end surface of the laser seeker housing is flush with the end surface of the housing positioning fixture; S2 uses the suction cup at the bottom of the centering vacuum suction cup to suck up the optical head cover, and centers it through the first positioning end surface corresponding to the centering vacuum suction cup. Then, the optical head cover is placed on the glue-coated surface of the shell, and positioned on the laser guide head shell through the second positioning end surface of the centering vacuum suction cup, so that the optical head cover and the laser guide head shell are coaxial. After the installation is completed, the centering vacuum suction cup is removed; S3 applies glue to the mounting surfaces of the laser seeker housing and the optical head cover, uses a pressure ring installation tool to tighten the pressure ring onto the optical head cover, and pushes it onto the corresponding mounting surface of the housing; checks whether the silicone rubber overflowing between the bonding surfaces of the optical head cover and the laser seeker housing is uniform and continuous; if not, clean the glue surface and re-bond it; the pressure ring is screwed to the laser seeker housing, and uses a pressure ring installation tool to rotate the pressure ring onto the thread of the laser seeker housing to the pressure ring limit step surface, while pushing the optical head cover into place; S4 cleans the excess glue and solidifies it into shape; The housing positioning fixture is a hollow bracket structure, the inner hole of which matches the outer shape of the laser seeker housing and is used to fix the laser seeker housing; the housing positioning fixture includes a positioning bracket, and the inner hole of the positioning bracket is provided with a rubber plate to separate the housing positioning fixture from the laser seeker housing; The centering vacuum suction cup includes a rod body, a vacuum ball is provided at one end of the rod body, and a suction cup is provided at the other end. A first positioning end surface is provided on the rod body near the suction cup, and a second positioning end surface is provided near the vacuum ball. Both are parallel and perpendicular to the rod body; the first positioning end surface matches the end surface of the optical head cover, and the second positioning end surface matches the end groove of the laser guide head housing; The pressure ring installation tool comprises a vertical rod, a pressure plate is provided at the bottom of the vertical rod, the pressure plate matches the pressure ring groove body, and a torque screwdriver interface is provided at the top of the vertical rod.

2. The laser guide head optical head cover bonding process according to claim 1, characterized in that: Before step S1, a pressure ring is first installed on the laser seeker housing.

3. The laser guide head optical head cover bonding process according to claim 1, characterized in that: In step S1, the housing positioning tool comprises a hollow positioning bracket, the inner hole of which matches the outer shape of the laser seeker housing. A rubber plate is provided on the inner hole of the positioning bracket to separate the housing positioning tool from the laser seeker housing.

4. The laser guide head optical head cover bonding process according to claim 1, characterized in that: In step S2, the centering vacuum suction cup includes a rod body, one end of which is provided with a vacuum ball, and the other end is provided with the suction cup, the first positioning end face and the second positioning end face are arranged parallel to the rod body, and both are perpendicular to the rod body; the first positioning end face is arranged close to the suction cup, and the second positioning end face is arranged close to the vacuum ball.

5. The laser guide head optical head cover bonding process according to any one of claims 1 to 4, characterized in that: In step S2, the edge shape of the first positioning end face is the same as the end face of the optical head cover, and its size is not larger than the size of the end face of the optical head cover; the edge shape of the second positioning end face is the same as the end groove body of the laser guide head shell, and its size is not larger than the size of the end groove body of the laser guide head shell.

6. The laser guide head optical head cover bonding process according to claim 5, characterized in that: In step S2, the outer diameter of the first positioning end face is 0.05mm to 0.15mm smaller than the outer diameter of the optical head cover; the outer diameter of the second positioning end face is 0.05mm to 0.15mm smaller than the inner diameter of the slot at the end of the laser guide head shell.

7. The laser guide head optical head cover bonding process according to any one of claims 1 to 4 or 6, characterized in that: In step S3, the pressure ring installation tool includes a vertical rod with a pressure plate at the bottom, the pressure plate matches the pressure ring groove body, and a universal torque screwdriver interface is provided at the top of the vertical rod.

8. The laser guide head optical head cover bonding process according to claim 1, characterized in that: In step S4, the curing molding method is: placing the optical head cover upward for curing, and after curing at room temperature for 24 hours to 48 hours, placing it at an angle so that the inside of the shell is connected to the external environment.

9. A laser seeker optical head cover bonding and assembly device, used in the laser seeker optical head cover bonding process according to any one of claims 1 to 8, characterized in that: include: The housing positioning fixture is a hollow bracket structure whose inner hole matches the outer shape of the laser seeker housing and is used to fix the laser seeker housing; the housing positioning fixture includes a positioning bracket, and the inner hole of the positioning bracket is provided with a rubber plate to separate the housing positioning fixture from the laser seeker housing; A centering vacuum suction cup comprises a rod body, one end of which is provided with a vacuum ball, and the other end of which is provided with a suction cup. The rod body is provided with a first positioning end surface near the suction cup, and a second positioning end surface near the vacuum ball, both of which are parallel and perpendicular to the rod body; the first positioning end surface matches the end surface of the optical head cover, and the second positioning end surface matches the end groove of the laser guide head housing; The pressure ring installation tool comprises a vertical rod, a pressure plate is provided at the bottom of the vertical rod, the pressure plate matches the pressure ring groove body, and a torque screwdriver interface is provided at the top of the vertical rod.

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